Allergy to Aspergillus-derived enzymes in the baking industry: Identification of β- xylosidase from Aspergillus niger as a new allergen (Asp n 14) Ingrid.

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Allergy to Aspergillus-derived enzymes in the baking industry: Identification of β- xylosidase from Aspergillus niger as a new allergen (Asp n 14) Ingrid Sander, PhD a, Monika Raulf-Heimsoth, PhD a, Christoph Siethoff, PhD b, Christiane Lohaus, PhDb, Helmut E. Meyer, PhDb, Xaver Baur, MDa Journal of Allergy and Clinical Immunology Volume 102, Issue 2, Pages 256-264 (August 1998) DOI: 10.1016/S0091-6749(98)70109-5 Copyright © 1998 Mosby, Inc. Terms and Conditions

Fig. 1 SDS-PAGE of dithiothreitol-treated (lanes 1 to 4) and nonreduced (lanes 5 and 6) enzyme preparations. Xylanase (lanes 1 and 5), cellulase (lanes 2 and 6), glucoamylase (lanes 3 and 7), and α-amylase (lanes 4 and 8) were electrophoresed and stained with Coomassie brilliant blue. Journal of Allergy and Clinical Immunology 1998 102, 256-264DOI: (10.1016/S0091-6749(98)70109-5) Copyright © 1998 Mosby, Inc. Terms and Conditions

Fig. 2 Xylanase proteins (180 μg) were separated by SDS-PAGE and electroblotted onto polyvinylidene difluoride membrane. Membrane strips were stained with Coomassie brilliant blue (Lane C) or reacted to bakers' sera with positive EAST to xylanase (lanes 1 to 8) and secondary alkaline phosphatase-labeled anti-human IgE. Serum of health care worker with latex allergy (lane N) was used as negative control. Journal of Allergy and Clinical Immunology 1998 102, 256-264DOI: (10.1016/S0091-6749(98)70109-5) Copyright © 1998 Mosby, Inc. Terms and Conditions

Fig. 3 IPG-Dalt of xylanase (20 μg protein was applied at cathode). First dimension IPG 4 to 9; second dimension SDS-PAGE, T = 10% (silver stain). Journal of Allergy and Clinical Immunology 1998 102, 256-264DOI: (10.1016/S0091-6749(98)70109-5) Copyright © 1998 Mosby, Inc. Terms and Conditions